MFMailComposerViewController doesn't always display attachments

Posted by davbryn on Stack Overflow See other posts from Stack Overflow or by davbryn
Published on 2010-05-17T08:39:33Z Indexed on 2010/05/17 8:40 UTC
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mfmailcomposeviewcontroll

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attachment

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iphone

I'm attaching a few files to an email to export from the application I've written, namely a .pdf and a .png. I create these by rendering some view to a context and creating an image and a pdf. I can validate that the files are created properly (I can confirm this by looking in my apps sandbox from Finder, and also by sending the email. I receive the files correctly.)

The problem I'm getting is that larger files don't have a preview generated for them within the MFMailComposerViewController view (I simply get a blue icon with a question mark).

Is there a limitation on file sizes that can be attached in order for preview to function correctly? With small files it works as expected, but if I try and attach a pdf with the following properties:

Pages: 1 Dimensions: 2414 x 1452

Size: 307 KB

the file is generated correctly, but displays the question mark icon.

If there is no way around that, can I remove the attachment preview altogether?

Many thanks,

Bryn

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